Death of Lex Luthor (Earth-15); Death of Superman (Earth-15); Death of Cyborg (Earth-15); Death of Green Arrow (Earth-15); Death of Aquaman (Earth-15); Death of Martian Manhunter (Earth-15); Death of Wonder Woman (Earth-15); Death of Batman (Earth-15); Death of Earth-15; Origin of Desaad; Countdown to Final Crisis